did you patch the kernel, and get the cooresponding raidtools? or are you
trying to use the new raidtools on the raid driver that is in the kernel?
i dont think that works. patch your kernel with stuff from:
ftp.us.kernel.org/pub/linux/daemons/raid/alpha i think :)
if you have already done this, i dont have a clue :)
you realize i hope, that your performance of the setup you described will
be less than optimal (at least from a theoretical standpoint) because ext2
places files at random locations all over the block device to minimize
fragmentation. when you place files in the last several megs (~5) of your
setup, you will be reading entirely off of one disk (the big one).
if you need all that space, so be it. otherwise, might be a good idea to
partition the big one, and get an 8 gig raid0 and a 5 gig regular type 83
just my 2c
al
"so don't tell us it can't be done, putting down what you don't know.
money isn't our god, integrity will free our souls" - Max Cavalera
On Tue, 9 Mar 1999, Mike Dickson wrote:
> okay, I tried -f and saw this email, so I hope you can lend me a hand...
>
> I have:
>
> sdb 4.2GB UWSCSI, 1 partition (sdb1)
> sdc 9.0GB UWSCSI, 1 partition (sdc1)
>
> I want:
> /dev/md0 = 13.2GB striped partition
>
> I did:
> -compiled kernel 2.2.3 with MD support built in for all levels (not as modules)
> -installed raidtools-0.90-19990128.i386.rpm
> -created /etc/raidtab:
> #start raidtab
> raiddev /dev/mdo
> raid-level 0
> nr-raid-disks 2
> nr-spare-disks 0
>
> device /dev/sdb1
> raid-disk 0
> device /dev/sdc1
> raid-disk 1
> #end raidtab
> -issued:
> % mke2fs /dev/sdb1 -R stride=64
> % mke2fs /dev/sdc1 -R stride=64
> % mkraid /dev/md0
> handling md device /dev/md0
> analyzing super-block
> disk 0: /dev/sdb1, 4441941kB, raid superblock at 4441856kB
> /dev/sdb1 appears to contain an ext2 filesystem -- user -f to override
> mkraid: aborted
> % mkraid -f /dev/md0
> DESTROYING the contents of /dev/md0 in 5 seconds, Ctrl-C is unsure!
> handling md device /dev/md0
> analyzing super-block
> disk 0: /dev/sdb1, 4441941kB, raid superblock at 4441856kB
> disk 1: /dec/sdc1, 8883913kB, raid superblock at 8883840kB
> mkraid: aborted
>
> Now what? Am I doing this right? I ge the feeling i'm not. Any help
> appreciated!
>
> ...Mike
>
>
>
